WGN-Ch.9 is shifting its anchors throughout the day to accommodate the expansion of its evening news to two hours beginning Sept. 8.

Mark Suppelsa and Micah Materre, who co-anchor the WGN News at Nine, will do the same for the evening news from 4 to 6 p.m., joined by meteorologist Tom Skilling and traffic reporter Sarah Jindra, the station announced Tuesday.

Lourdes Duarte, who currently co-anchors the 5 to 6 p.m. news with Suppelsa, will move to mornings to co-anchor alongside Dan Ponce from 4 to 6 a.m. Erin McElroy will vacate the early-bird anchor desk to focus on traffic and breaking news.

"The way people consume news has changed and breaking news is becoming more important to our viewers," WGN news director Jennifer Lyons said in a statement. "By expanding our evening news we will better serve our viewers."

Lyons, a 21-year veteran of the station, was elevated to news director in July, following the retirement of longtime WGN news director Greg Caputo. With the change, Tribune Media’s WGN-Ch. 9 will have expanded its news programming to 61 hours per week.

Chicago-based Tribune Media spun off the Chicago Tribune and nine other daily newspapers into a stand-alone company this month.